Fire Protection of Self-supporting Ducts

The relative complexity of any ductwork system passing through different fire compartments and the relevance of the system’s function in ambient as well as fire conditions can make the selection of a suitable ductwork system difficult.

Promat provides guidance on fire performance requirements and a wide range of solutions for protecting ductwork and other self supporting systems.

Further Information


  • No steel sheet ducts are required
  • Single shell construction
  • Dimensionally stable and resistant to moisture
  • Easy to cut to size, ex factory or on site
  • Lightweight shaped sections
  • Serviceable smooth surface, robust


Fire Resistance
MASTERBOARD® Self-supporting Ducts 180 minutes
PROMATECT®-N Self-supporting Ducts 180 minutes


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